(19)

(11)

EP 4 480 185 A2

(12)

(88) Date of publication A3: 26.10.2023 (43) Date of publication: 25.12.2024 Bulletin 2024/52 (21) Application number: 23757005.6 (22) Date of filing: 14.02.2023

(51) International Patent Classification (IPC):  H04N 21/84(2011.01) H04N 21/43(2011.01) H04N 21/235(2011.01) (52) Cooperative Patent Classification (CPC): G11B 27/031; G11B 27/102; G11B 27/3027; H04N 21/44016; H04N 21/23424; H04N 21/8456; H04N 21/26258; H04N 21/23439; H04N 21/234345; H04N 21/440245; H04N 21/44029 (86) International application number: PCT/US2023/062547 (87) International publication number: WO 2023/158998 (24.08.2023 Gazette 2023/34)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 15.02.2022 US 202263310433 P (71) Applicant: ByteDance Inc. Los Angeles, CA 90066 (US)	(72) Inventor: WANG, Ye-Kui Los Angeles, California 90066 (US) (74) Representative: Williams, Michael David  Marks & Clerk LLP 1 New York Street Manchester M1 4HD Manchester M1 4HD (GB)